Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AIIMS 201827 May
Exam
AIIMS
Year
2018
Date
27 May
Subject
Chemistry
Chapter
d and f Block Elements

AIIMS 2018 · 27 May · Chemistry · d and f Block Elements

Which of the following exhibits minimum number of oxidation states?

Which of the following exhibits minimum number of oxidation states?

Options

  1. AMn\mathrm{Mn}
  2. BNp\mathrm{Np}
  3. CTh
  4. DCr\mathrm{Cr}

Correct answer

C. Th

Step-by-step solution

Thorium can show normally +4 oxidation state whereas Mn,Cr\mathrm{Mn}, \mathrm{Cr} can show large number of oxidation states. Np also belongs to 5f5 f series with variable oxidation states.
Practice d and f Block Elements on Quantrex Academy →

More from d and f Block Elements

Although +3 oxidation state is most common in lanthanoids, cerium still shows +4… NEET 2026The lanthanide ion having four unpaired electrons is (Given : Atomic numbers of Ce =58… NEET 2026The green paramagnetic species formed by heating KMnO _4 at 513 K is NEET 2026The calculated 'spin-only' magnetic moment of Ti^ 2+ \ (3d^2) is : NEET 2026Match List I with List II : List I (Transition metal/compound/complex) List II (Catalytic… NEET 2026Given below are two statements : One is labelled as Assertion A and the other is labelled… NEET 2026Given below are two statements : Statement I : Ferromagnetism is considered as an extreme… NEET 2025Which of the following set of ions act as oxidising agents? NEET 2024 Full d and f Block Elements list All AIIMS PYQs